Announcement PDF ASX Release 17th October 2023 Phase 1 Drill Program Summary – Dorchap Lithium Project Update Dart Mining NL (ASX:DTM) (“Dart Mining” or “the Company”) is pleased to announce that all results from the Phase 1 scout diamond drilling program at the Dorchap Range Lithium project are now available. This update summarises an initial review of the drilling completed under Phase 1 of the Sociedad Química y Minera de Chile S.A (NYSE:SQM) $12 million SQM earn-in agreement with Dart Mining. Dorchap Range LCT Pegmatite Phase 1 Highlights • • • • Core logging indicates Spodumene and Petalite are the dominant lithium mineral phases Downhole assay highlight results included: o MIDDH001 – Eagle Dyke ▪ 34.67m @ 0.11% Li2O from 65.7m (Dart Mining ASX June 2023) o MIDDH002 – Eagle Dyke ▪ 16.75m @ 0.21% Li2O from 103.98m (Dart Mining ASX June 2023) Including 0.81m @ 1.20% Li2O from 111.45m o MIDDH004 – Fergusson’s Dyke ▪ 5.9m @ 0.81% Li2O from 204m Including 3.3m @ 1.00% Li2O from 204.67m o MIDDH005 – Fergusson’s Dyke ▪ 3.01m @ 0.26% Li2O from 78.49m (Dart Mining ASX June 2023) Including 0.62m @ 1.63% Li2O from 80.43m o MIDDH009 – Boones Dyke (Dart Mining ASX September 2023) ▪ 10.0m @ 1.08% Li2O from 313m Including 7.0m @ 1.38% Li2O from 315m o MIDDH010 Boones Dyke (Dart Mining ASX September 2023) ▪ 2.0m @ 1.07% Li2O from 302m Including 1.0m @ 1.38% Li2O from 303m Dart Mining has granted SQM, the right, to sole fund exploration expenditure totalling A$12million. During the first earn in period, SQM may earn an initial 30% interest in the Dorchap Lithium Project by sole funding exploration expenditure of A$3million Chairman, James Chirnside commented: “The Phase 1 drill program has confirmed the lithium fertility of highly fractionated pegmatites that occur within an area of some 160 km2. The imminent Phase 2 and permitting of Phase 3 drilling is eagerly awaited as drilling focus moves to high priority targets within the Gosport dyke Group.” Dart Mining NL ABN: 84 119 904 880 Level 6, 412 Collins Street Melbourne VIC 3000 Contact: James Chirnside Email: jchirnside@dartmining.com.au Mobile: +61 447 447 613 Webpage: www.dartmining.com.au LinkedIn: Dart Mining NL Twitter: @DartMining Page | 1 Discussion of Phase 1 Drilling Results Phase 1 diamond drilling has been very successful in proving the lithium fertility of the roadside accessible dyke targets tested to date and more broadly of the selected Dorchap Dyke Swarm fractionation target area, hosting hundreds of prospective dykes. Extensive mapping and rock chip geochemistry combined with the new drilling data has now provided geological context around width, grade, mineral chemistry and continuity variations within the pegmatites. This program is the first diamond drilling undertaken along the Dorchap Lithium Project, with interpretation beginning to consolidate into a robust geological model. This allows more predictive targeting and a better understanding of the key controls to emplacement and grade distribution to be applied. The current interpretation of the geological evolution and structural emplacement of the Dorchap Dyke Swarm pegmatites involves variable syn-emplacement to post-emplacement shearing of the dykes (extensive at the Eagle Dyke) that has generated mylonitic (sheared) textures that likely caused partial recrystallisation within some pegmatite bodies and re-mobilised a portion of the contained lithium from the dyke into the surrounding sediments as an exomorphic halo. Broadly, higher drill grade appears to correlate with larger primary pegmatite crystal size (preserved megacrystic texture). This important textural characteristic appears indicative of undeformed or weakly deformed portions of the pegmatites tested to date. The deformation and hydrothermal alteration noted in portions of the pegmatites may be responsible for the broader, but overall lower grade lithium intersections at Eagle dyke (34.67m @ 0.11% Li2O – Table 1) and similar recrystalised intersections, in contrast, the dominant megacrystic pegmatite intersected at Boones (MIDDH009 and MIDDH010) show higher grades (Table 1) with up to 10m @ 1.08% Li2O (Dart Mining ASX September 2023). As previously observed, (Dart Mining ASX September 2023) an understanding of the structural evolution of the region is critical to exploration success due to the controls on the emplacement, alteration and preservation of primary lithium grades in the Dorchap pegmatite dykes. Building upon this structural model is a key focus of the planned follow-up phases of diamond drilling under the SQM earn-in agreement. For reference, previous updates have covered results of holes MIDDH001, MIDDH002 and MIDDH005 (Dart Mining ASX June 2023) and MIDDH009 and MIDDH010 (Dart Mining ASX September 2023). A total of five separate pegmatite dykes have been tested by a total of 12 diamond drill holes for a total of 3032m in Phase 1. A summary of the key results of the full program are presented in Table 1 and discussed below with assay highlights from previously announced and new data (MIDDH003, MIDDH004, MIDDH007, MIDDH008, MCDDH001 and MCDDH002) tabulated. Drill hole location and orientation data are presented in Appendix 1 and tenement details appear in Appendix 2. Peak lithium assays from drill holes across the Phase 1 scout diamond drill program are geologically compelling and have ensured continued support for ongoing lithium exploration under the SQM earn-in agreement. To continue developing targets while permitting access for drilling the Gosport Group proceeds, investigations and field-work has commenced with the aim of building a second low-impact diamond drilling program for completion during the summer field period. The Gosport Group has already been outlined during mapping and rock chip sampling as a highly prospective zone with multiple, closely spaced spodumene bearing lithium mineralised dykes within a 2km x 1km area (Dart Mining ASX April 2017). Multiple closely spaced mineralised dykes have the potential to be aggregated to build tonnage within the group, an important economic factor in any future development. Planning for the Phase 3 diamond drill program has also advanced to the permitting stage, approvals will provide new track access and drilling positions into the key targets of the central Gosport Group (Figure 1). Page | 2 Recent assay results from the remaining holes in the Phase 1 program cover the Eagle dyke (MIDDH003), Fergusson’s dyke (MIDDH004), Blairs dyke (MIDDH006, MIDDH007 & MIDDH008) and the Rodda Creek dyke (MCDDH001 & MCDDH002). Hole MIDDH003 was drilled at the northern extent of the Eagle Dyke outcrop (Figure 1) at a high angle to the northwest strike orientation, some 160m northwest of holes MIDDH001 and MIDDH002 (Table 1). Hole MIDDH003 did not intersect any significant lithium mineralisation with only a narrow fine to granitic pegmatite intersected between 229.2 to 232.09m (Figure 2). The Eagle dyke appears to narrow down dip and is structurally complex, splitting into multiple dyke structures to the north. Hole MIDDH004 was drilled below the eastern extent of the Fergusson’s dyke outcrop (Figure 1) at a high angle to the northwest strike. The hole intersected 5.9m @ 0.81% Li2O from 204.0m, including 3.3m @ 1.00% Li2O from 204.67m (Table 1 – Figure 3). This intersection consists of fine to medium crystalline pegmatite with patchy megacrystic zones, indicating variable recrystalisation is present. Fergusson’s dyke appears to remain steeply southwest dipping from surface and increases in width and lithium grade with depth from hole MIDDH005 to MIDDH004. Page | 3 Figure 1 - Dorchap Lithium Project – drill hole locations and named pegmatite targets in the Phase 1 Drill program. Page | 4 Figure 2 – Composite oblique Cross-section of drilling completed across Eagle Dyke. Holes MIEDRC001-003 previously reported (Dart Mining ASX June 2019). MIDDH001 – 002 previously reported (Dart Mining ASX June 2023). Page | 5 Figure 3 – Oblique cross-section across Fergusson’s Dyke - MIDDH004 and MIDDH005 (Dart Mining ASX June 2023) Holes MIDDH006, MIDDH007 and MIDDH008 tested Blairs dyke (Figure 1) with MIDDH006 intersecting 6.47m @ 0.16% Li2O from 77.15m (Figure 4 – Table 1) across a sheared, recrystalised pegmatite dyke with significant intermingled sediment and associated exomorphic halo. Blairs dyke appears to be moderately to steeply southwest dipping with a northwest strike. Drill holes intersected the dykes strike at a high angle with MIDDH008 drilling sub-parallel to the dip of the dyke. MIDDH006 intersected the dyke at a high angle to its dip with an estimated true width zone of mixed dyke and sheared sediments over 6.47m (Table 1 – Figure 4). Holes MIDDH007 and MIDDH008 were both drilled as scissor holes back toward MIDDH006 to confirm the dip of the dyke. MIDDH007 passed below the interpreted down dip extent of the dyke (Figure 5) and MIDDH008 passed through mixed sheared pegmatite and sediment (Figure 6) from 64.5 to 83.6m over a true width of approximately 4m with no significant lithium results. Page | 6 Figure 4 – Oblique cross-section across Blairs Dyke - MIDDH006 showing drill intersection and pegmatite interpretation. Figure 5 – Oblique cross-section across Blairs Dyke - MIDDH007 showing pegmatite interpretation. Page | 7 Figure 6 – Oblique cross-section across Blairs Dyke - MIDDH008 showing pegmatite interpretation. Previously reported (Dart Mining ASX September 2023) holes MIDDH009 and MIDDH010 tested Boones dyke (Figure 1) on two sections approximately 140m apart along strike. MIDDH009 intersected 10m @ 1.08% Li2O (Table 1 – Figure 7) from 313m (including 7m @ 1.38% Li2O) from the western dyke structure at Boones. The Boones dyke appears to dip steeply to the west and shows geological continuity extends below 200m depth from surface. The true width of the pegmatite based on surface mapping and the current drill interpretation is between 5 – 13m with an open strike extent of some 300m at surface. The drill intersection assay highlight is approximately 5m in true width with the drill hole orientation approximately perpendicular to the strike of the pegmatite. MIDDH010 intersected 2m @ 1.07% Li2O (Table 1 – Figure 8) from 302m from the western dyke, some 90m along strike from the western dyke intersection in MIDDH009 (Figure 7 and 8). Geological continuity extends below 175m depth from surface with the true width of the pegmatite drill intersection being approximately 5m. The drill intersection orientation is approximately perpendicular to the strike of the dyke with the assay highlight having a true width of approximately 1.1m. Page | 8 Figure 7 – Oblique cross-section interpretation of drill hole MIDDH009 with assay highlights from Boones Dyke. Page | 9 Figure 8 – Oblique cross-section interpretation of drill hole MIDDH010 with assay highlights from Boones Dyke. Hole MCDDH001 and MCDDH002 tested the Rodda Creek dyke within EL006486 (Figure 1). The drilling is oriented at a high angle to the northwest strike of the dyke. MCDDH001 intersected a narrow dyke between 137.68 and 140.46m with an assay highlight of 0.72m @ 0.49% Li 2O from 138.82m consisting of strongly recrystalised pegmatite with relict megacrystic texture and minor cassiterite inclusions (Table 1 - Figure 9). The pegmatite in MCDDH001 is interpreted to have a true width of 2.3m. MCDDH002 intersected a narrow pegmatite between 145.0 to 146.11m with no significant lithium mineralisation. The pegmatite is intensely sheared and recrystalised showing minor scattered eucryptite and cassiterite grains with a true width of 0.9m. The Rhoda Creek dyke is interpreted to dip steeply southwest and appears to narrow down dip, becoming intensely sheared and recrystalised (Figure 10). Page | 10 Figure 9 – Oblique cross-section interpretation of drill hole MCDDH001 with assay highlights from the Rodda Creek Dyke. Page | 11 Figure 10 – Oblique cross-section interpretation of drill hole MCDDH002 from the Rodda Creek Dyke. Page | 12 Table 1 – Notable lithium mineralised intervals – Phase 1 Program Drill Hole MIDDH001 MIDDH002 From (m) 65.7 103.98 Including: 111.45 To (m) Interval (m) 100.37 120.73 112.26 34.67 16.75 0.81 Li2O (%) 0.11 0.21 1.20 MIDDH003 MIDDH004 204.00 Including: 204.67 209.90 208.00 5.90 3.3 0.81 1.00 MIDDH005 78.49 Including: 80.43 81.5 81.05 3.01 0.62 0.26 1.63 MIDDH006 MIDDH007 MIDDH008 77.15 83.62 6.47 0.16 MIDDH009 313 Including: 315 323 322 10 7 1.08 1.38 MIDDH010 Including: MCDDH001 MCDDH002 302 303 304 304 2 1 1.07 1.38 138.82 139.54 0.72 0.49 Notes Pegmatite & exomorphic halo Coarse pegmatite No Significant Intersection Fine pegmatite with patchy megacrystic texture Megacrystic to recrystalised pegmatite Exomorphic halo and sheared pegmatite No Significant Intersection No Significant Intersection Megacrystic to recrystalised pegmatite Megacrystic to recrystalised pegmatite Recrystalised pegmatite with relict megacrystic texture No Significant Intersection Dorchap Lithium Project Summary Dart Mining geologists first identified the lithium prospectivity of pegmatite dykes in the Dorchap Range in 2016 and set about acquiring exploration leases across the region (Dart Mining ASX May 2016; Dart Mining ASX August 2016). These are the first recorded lithium pegmatites identified in Victoria, and are believed to have been sourced from the nearby Mount Wills Granite. A regional sampling program consisting of 826 samples has identified a strong fractionation trend across the Dorchap Range, resolving a 20 km ×12 km zone of strongly fractionated pegmatites bearing enriched Li, Cs, Ta, Be and Sn mineralisation (Dart Mining ASX July 2021). Dart Mining’s chip sampling program has yielded rewarding results, including: 16m at >530 ppm Cs2O, 0.32% Li2O and 104 ppm Ta2O5, and grab samples at 1.57% Li2O and 0.1% Ta2O5 at the Bluejacket Dyke in Glen Wills, along with 10m at 0.95% Li2O from the Eagle Dyke and 10m at 1.38% Li2O from the Holloway Dyke (Dorchap Range), and 10m at 1.22% Li2O from Scrubby Dyke, 1m at 838 ppm Cs2O and 0.46% SnO2, and a grab sample at 9.98% SnO2 from elsewhere in the Dorchap Range (Dart Mining ASX July 2021). The initial short drilling program in 2019 has been followed by an airborne LiDAR mapping program in early 2021 (Dart Mining ASX March 2021), which has allowed additional, detailed mapping of pegmatite dykes that were previously overlooked in pockets of dense bush across the Dorchap Range. ––– END ––– Page | 13 For more information contact: James Chirnside Managing Director Dart Mining NL jchirnside@dartmining.com.au +61 447 447 613 Peter Taylor Investor Relations NWR Communications peter@nwrcommunications.com.au +61 412 036 231 About Dart Mining Dart Mining (ASX: DTM) has the aim of evaluating and developing several historic goldfields, as well as substantiating a new porphyry province in Northeast Victoria. The area is prospective for precious, base, and strategic metals. These include Lithium, Gold, Silver, Copper, Molybdenum, Zinc, Tungsten, Tin, Tantalum, and a host of other important minerals. Dart Mining has built a strategically placed gold exploration footprint in the Central and Northeast regions of Victoria, where historic surface and alluvial gold mining indicates the existence of potentially significant gold endowment. Additional JORC Information Further details relating and information relating to Dart Mining’s Strategic and Technology metals exploration programs can be found in Dart Mining’s ASX announcements: 13th September 2023: “Excellent Lithium Drill Results” 22nd June 2023: “First Assay Results from Phase 1 Drilling” 6th October 2021: “Lithium Drilling Update” 27th October 2021: “LiDAR Points Towards Increase in Lithium Pegmatites” 21st July 2021: “Strategic & Technology Metals” 18th March 2021: “LiDAR Data Acquisition over Strategic Projects” 10th February 2021: “Exploration Strategy & Tenement Status Update” 19th June 2019: “Lithium Project Update” 19th March 2019: “Lithium Exploration Drilling to Commence at the Dorchap Project” 14th November 2018: “Lithium Exploration Update” 10th September 2018: “Exploration Update: Dorchap Lithium Project” 10th May 2018: “Significant Lithium Mineralisation in Pegmatites of the Dorchap Range, Victoria” 21st December 2017: “Lithium Exploration Update” 6th October 2017: “Lithium Tenements & Prospects” 3rd April 2017: “Lithium Exploration Update” 3rd April 2017: “Exploration Program Confirms Significant Lithium Pegmatites in NE Victoria” 6th February 2017: “Acquisition of Tenement Package” 9th August 2016: “Company Update: Lithium” 1st June 2016: “Exploration Tenement Update” 18th May 2016: “Tenement Application Update” Page | 14 Additional information on Dart Mining’s other recent and current exploration activities can be found in: 26th May 2022: “Granite Flat Drilling Completion” 15th February 2022: “Granite Flat Cu-Au Diamond Drilling Update” 11th October 2021: “Granite Flat Diamond Drilling Update” 29th September 2021: “Multiple Drill Targets Identified at Granite Flat” 14th September 2021: “Encouraging Copper-Gold Drill Results from Granite Flat” 27th May 2021: “Initiation of Geophysical Surveys at Granite Flat” 11th May 2021: “Diamond Drilling Program for Copper-Gold Mineralisation Commences” 18th March 2021: “LiDAR Acquisition over Strategic Projects” 8th March 2021: “Granite Flat High-Grade Gold, Silver, Copper Drill Results” 27th October 2020: “Orogenic Gold and Porphyry Prospectivity, Mitta Mitta, NE Victoria” 22nd September 2021: “Mt Elmo Goldfield Mineralisation” 6th April 2021: “Strong Gold Mineralisation Intercepted at Rushworth” 16th February 2021: “Sandy Creek Significant Gold Mineralisation” 19th October 2020: “Drill Results Reveal High-Grade Gold” Competent Person’s Statement The information in this report that relates to Exploration Results has been compiled by Mr Owen Greenberger who is the full-time Head of Exploration for Dart Mining, and verified by Mr Dean Turnbull, a Competent Person who is a Member of the Australian Institute of Geoscientists. Mr Turnbull is a consultant and Nonexecutive Director of Dart Mining. Mr Turnbull has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity being undertaken to qualify as a competent person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Turnbull consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Forward-Looking Statement Certain statements contained in this document constitute forward-looking statements. Forward-looking statements include, but are not limited to, Dart Mining’s current expectations, estimates and projections about the industry in which Dart Mining operates, and beliefs and assumptions regarding Dart Mining’s future performance. Such forward-looking statements are based on a number of estimates and assumptions made by the Company and its consultants in light of experience, current conditions and expectations of future developments which the Company believes are appropriate in the current circumstances. When used in this document, words such as; “anticipate”, “could”, “intends”, “estimate”, “potential”, “plan”, “seeks”, “may”, “should”, and similar expressions are forward-looking statements. Although Dart Mining believes that its expectations presented in these forward-looking statements are reasonable, such statements are subject to known and unknown risks, uncertainties and other factors, which may cause the actual results, achievements and performance of the Company to be materially different from the future results and achievements expressed or implied by such forward-looking statements. Investors are cautioned that forward-looking information is no guarantee of future performance and accordingly, investors are cautioned not to place undue reliance on these forward-looking statements. Page | 15 APPENDIX 1 Drill hole location and orientation details. Drill Hole MIDDH001 MIDDH002 MIDDH003 MIDDH004 MIDDH005 MIDDH006 MIDDH007 MIDDH008 MIDDH009 MIDDH010 MCDDH001 MCDDH002 Dyke / Target Eagle Eagle Eagle Fergussons Fergussons Blairs Blairs Blairs Boones Boones Rodda Rodda Easting (MGA Z55) 524,012.9 523,982.5 523,882.1 524,531.2 524,578.1 526,079.9 526,112.4 526,109.4 524,656.5 524,586.2 529,426.5 529,426.9 Northing RL (MGA Z55) (m) 5,949,105.9 1,159.2 5,949,096.3 1,163.0 5,949,207.0 1,105.0 5,950,327.3 979.0 5,950,374.3 970.4 5,954,138.9 816.7 5,954,232.9 805.3 5,954,206.0 811.2 5,957,946.9 951.8 5,958,069.3 961.2 5,949,661.0 561.5 5,949,660.8 561.4 Azimuth (Grid) 31.5 28.5 46.3 74.8 16.8 55.6 204.1 183.4 249.5 234.8 14.5 59.8 Dip -55.0 -54.9 -54.5 -54.8 -54.7 -55.0 -54.3 -70.3 -54.6 -54.9 -55.2 -54.9 Total Depth (m) 250 336.8 294.6 252.8 152.4 169.9 125.3 130.1 396.6 360.7 314.9 266.5 Page | 16 APPENDIX 2 TENEMENT STATUS All tenement applications continue to pass through the approvals process with the tenements remaining in good standing as of the 29th of September 2023 (Table 1.1 – Figure 1.1). Table 1.1. TENEMENT STATUS MIN006619 Mt View 2 Mining License Area (km2) Unless specified 224 Ha EL5315 Mitta Mitta4&5 Exploration Licence 148 100% NE Victoria EL006016 Rushworth4 Exploration Licence 32 100% Central Victoria EL006277 Empress5 Exploration Licence 87 100% NE Victoria EL006300 Eskdale3&5 Exploration Licence 96 100% NE Victoria EL006486 Mt Creek5 Exploration Licence 116 100% NE Victoria EL006764 Cravensville Exploration Licence 170 100% NE Victoria EL006861 Buckland Exploration Licence 414 100% NE Victoria EL007007 Union Exploration Licence 3 100% Central Victoria EL006994 Wangara Exploration Licence 190 100% Central Victoria EL007008 Buckland West Exploration Licence 344 100% NE Victoria EL007099 Sandy Creek5 Exploration Licence 437 100% NE Victoria EL006865 Dart Exploration Licence) 567 100% NE Victoria EL006866 Cudgewa Exploration Licence 508 100% NE Victoria EL007170 Berringama Exploration Licence 27 100% NE Victoria EL007430 Buchan EL (Application) 546 100% Gippsland EL007435 Goonerah EL (Application) 587 100% Gippsland EL008161 Colbinannin 100% Central Victoria EL007425 Deddick Exploration Licence 341 100% Gippsland EL007428 Boebuck Exploration Licence 355 100% NE Victoria EL007426 Walwa Exploration Licence 499 100% NE Victoria EL007754 Tallandoon5 Exploration Licence 88 100% NE Victoria RL006615 Fairley’s2 Retention License 340 Ha 100% NE Victoria RL006616 Unicorn1&2 Retention License 23,243 Ha 100% NE Victoria EL9476 Woomargama Exploration Licence 85 100% New South Wales EL9516 Brewarrina Exploration Licence 185 100% New South Wales Tenement Number Name Tenement Type EL (Application) Interest Location 100% NE Victoria All tenements remain in good standing as of 29 September 2023. NOTE 1: Unicorn Project area subject to a 2% NSR Royalty Agreement with Osisko Gold Royalties Ltd dated 29 April 2013. NOTE 2: Areas subject to a 1.5% Founders NSR Royalty Agreement. NOTE 3: Areas are subject to a 1.0% NSR Royalty Agreement with Minvest Corporation Pty Ltd (See DTM ASX Release 1 June 2016). NOTE 4: Areas are subject to a 0.75% Net Smelter Royalty on gold production, payable to Bruce William McLennan. NOTE 5: Tenements subject to conditions noted in the SQM earn-in agreement (Dart Mining ASX December 2022 SQM Earn-In) 17 | P a g e Figure 1.1: Location of Dart Mining’s exploration properties in Northeastern and Central Victoria. 18 | P a g e APPENDIX 3 JORC CODE, 2012 EDITION – TABLE 1 SECTION 1 SAMPLING TECHNIQUES AND DATA Criteria JORC Code Explanation Sampling techniques • • • • Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling. Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. Aspects of the determination of mineralisation that are Material to the Public Report. In cases where ‘industry standard’ work has been done this would be relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information. Commentary • • • • • • • • • • • HQ diamond drill core was drilled using triple tube method to retain maximum sample recovery. Diamond core was sampled as half core at 1m intervals or to geological or mineralogical boundaries, where relevant, to a minimum sample size of 0.2m and a maximum of 1.5m. To ensure representative sampling, half core samples were always taken from the same side of the core. Only pegmatite dykes and contact zones are sampled due to the target mineralisation. In interpreted unmineralized zones, samples were not submitted for analysis. Samples submitted to ALS were whole sample crushed to 70% <2mm, riffle/rotary split off 1 kg, pulverise to >85% passing 75 microns, then assayed by ALS methods ME-MS61 (0.25g sample aliquot by four-acid digest and ICP-MS and ICP-AES analysis), ME-ICP89 and ME-MS91. Certified Reference Materials OREAS 750, OREAS 751, OREAS 752, OREAS 753, and OREAS 999 as well as CRM blank OREAS C27c were inserted every 10 samples as part of a QA/QC system. All-drill related data are referenced to the original ASX report by date published. All details appear in the original report. Chip samples are taken continuously perpendicular to the general strike of mineralised structures in outcrop, and large samples (4 – 7kg) are taken where possible to provide a more representative sample. The chip samples are of adequate quality to be indicative of the area sampled. Grab samples were collected from the outcrop over a small area (<1 – 5m in diameter). The grab samples are generally small (ie. <7kg) and represent the local area only, sampling only tests a small aerial extent, and are not considered as being representative of the outcrop. The grab samples are of adequate quality to be representative of the small area sampled and approximate the sampled in situ mineralisation. Rock samples are dried, crushed and whole sample pulverized and riffle split. A sample aliquot (25g) is taken for analysis. Lithium has been analysed by ALS Method ME-MS61– a four acid digest assay technique for total digestion. Individual <7kg chip / grab samples were collected from outcrop, individual chips making up the sample were <40mm and chipped from a random selection of the 19 | P a g e Drilling techniques • Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.). Drill sample recovery • Method of recording and assessing core and chip sample recoveries and results assessed. Measures taken to maximise sample recovery and ensure representative nature of the samples. Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. • • Logging • Whether core and chip samples have been geologically and mineralisation to generate a representative average sample of the mineralisation targeted. • Semi-quantitative XRD results we analysed from the same sample pulp analysed for multi-element geochemistry. • X-ray diffraction traces were obtained from the samples with a Panalytical Aeris Research Powder Diffractometer. Operating conditions were 40kV/15mA, Fe Kß filter, step scan 0.01/29 secs˚2Ɵ at, 1/4˚ divergence and a 1.0˚ ant-scatter slit. Scan range was 5° to 90° 2Ɵ. Phases were identified by computer search/match of the COD and ICDD 2022 Databases. Quantitative results have been determined with full pattern Rietveld refinement software. • 12 diamond holes drilled by DDH1 Ltd across the mineralised structures. • 3 RC drillholes were drilled by EDrill Pty Ltd limited over two mineralised dyke structures. • Diamond Drilling (Core) is of HQ3 (63.5mm diameter) from surface. Drill holes are angled, and core is orientated (Reflex Tool) to allow structural interpretation (not yet completed) • Face sampling 5.25” hammer Reverse Circulation drilling • Holes surveyed using an Trushot downhole camera, both open hole and within rods (for dip). Verified using clinometer and compass survey of rods. • Face sampling 5 ¾’ RC drilling • Each 2m composite sample was weighed and results recorded to monitor sample recovery – a high average recovery was achieved in all holes. • Experienced geologists ensured best drilling and sampling practices were maintained. • Experienced drillers ensured best drilling and sampling practices were maintained, including pausing drilling between sample intervals to ensure all sample is out of the system and regular cleaning of the sampling equipment. • There was no observable relationship between sample recovery and grade. • Drill core recovery is recorded for each drill interval recorded by the drill contractor. The drilled interval (recorded on core blocks) and the recovered interval (measured during logging) are recorded in the company drill log database and recovery is calculated